Can you store copper sulphate solution in a zinc pot?

Zinc is more reactive than copper. Hence, it displaces copper from copper sulphate solution as follows:

Zn(s) + CuSO4(aq) → ZnSO₄ (aq) + Cu(s)

Thus, zinc reacts with CuSO₄ solution. Hence, we cannot store copper sulphate solution in a zinc pot.

Alternatively, 

To check whether zinc reacts with CuSO₄ solution i.e., whether the following reaction takes place or not

E°_Zn²⁺_{, Zn} = – 0.76V, E° _Cu²⁺_{, Cu} = 0.34V

find the EMF of this cell reaction. The cell may be represented as : Zn | Zn²⁺ |  | Cu²⁺ | Cu

Eºcell = Eº Cu²⁺, Cu^{– Eº}Zn²⁺,  Zn = 0.34 V – (–0.76 V) = 1.10 V

As Eºcell is positive, the reaction takes place and we cannot store, CuSO4 solution in zinc pot.