Answer
$CuSO_{4}$ has one Cu atom, one S atom and 4 O atoms.
Work Step by Step
By inspection, $CuSO_{4}$ has one Copper atom, one Sulfur atom and 4 Oxygen atoms.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.