At which oxidatin state Cu achieves electronic configuration of Zn+2?

At which oxidatin state Cu achieves electronic configuration of Zn+2?

Explanation

Oxidation half-reaction :


Zn - 2e = Zn^2+


Reduction half-reaction :


Cu^2+ +2e = Cu


Zn donates two electrons to form Zn^2+ ion and Cu^2+ gains two electrons to form Cu metal.

Thus, Cu^2+ is the oxidant.