Here's how to determine the number of atoms in a molecule of cupric sulfate (CuSO₄):

* Identify the elements: Cupric sulfate contains copper (Cu), sulfur (S), and oxygen (O).

* Determine the subscripts: The formula CuSO₄ tells us:

* There is 1 copper atom (Cu).

* There is 1 sulfur atom (S).

* There are 4 oxygen atoms (O).

* Add the atoms: 1 + 1 + 4 = 6 atoms

Therefore, there are 6 atoms in a molecule of cupric sulfate (CuSO₄).