Конструктор копий. Оператор присваивания

1) Подойдут.
2) На разные.

bgm313, Очевидно нет. Массив не является указателем. Он может приводиться к указателю, но сам является массивом.

In a declaration T D where D has the form
D1 [ constant-expressionopt ] attribute-specifier-seqopt
and the type of the identifier in the declaration T D1 is “derived-declarator-type-list T”, then the type
of the identifier of D is an array type; if the type of the identifier of D contains the auto type-specifier, the
program is ill-formed. T is called the array element type; this type shall not be a reference type, the (possibly
cv-qualified) type void, a function type or an abstract class type. If the constant-expression (5.19) is present,
it shall be an integral constant expression and its value shall be greater than zero. The constant expression
specifies the bound of (number of elements in) the array. If the value of the constant expression is N, the array
has N elements numbered 0 to N-1, and the type of the identifier of D is “derived-declarator-type-list array of N
T”. An object of array type contains a contiguously allocated non-empty set of N subobjects of type T. Except
as noted below, if the constant expression is omitted, the type of the identifier of D is “derived-declarator-type-
list array of unknown bound of T”, an incomplete object type. The type “derived-declarator-type-list array of
N T” is a different type from the type “derived-declarator-type-list array of unknown bound of T”, see 3.9. Any
type of the form “cv-qualifier-seq array of N T” is adjusted to “array of N cv-qualifier-seq T”, and similarly for
“array of unknown bound of T”. The optional attribute-specifier-seq appertains to the array.

In a declaration T D where D has the form attribute-specifier-seqopt cv-qualifier-seqopt D1
and the type of the identifier in the declaration T D1 is “derived-declarator-type-list T,” then the type of
the identifier of D is “derived-declarator-type-list cv-qualifier-seq pointer to T.” The cv-qualifiers apply to the
pointer and not to the object pointed to. Similarly, the optional attribute-specifier-seq (7.6.1) appertains to
the pointer and not to the object pointed to.

Я даже не могу объяснить чем отличаются абсолютно разные сущности.

Но, если мы имеем констатный указатель, то любая из ячеек на, который он указывает, если она не занята, может быть кому-то отдана