What will happen during the electrolysis of aqueous solution of `CuSO_(4)` by using platinum electrodes?

What will happen during the electrolysis of equeous solution of CuSO_(4) by using platinum electrodes -

What will happen during the electrolysis of aqueous solution of CuSO_4 in the presence of Cu electrodes?

What will happen during the electrolysis of aqueous solution of CuSO_(4) in the presence of Cu- electrodes -

What will happen during the electrolysis of aqu eous solution of CuSO_(4) in the presence of Cu electrodes?

What will happen during the electrolysis of aqu eous solution of CuSO_(4) in the presence of Cu electrodes?

What do you understand by electrolysis ? What chemical processes occur during the electrolysis of aqueous solution of: (i) CuSO_(4) using platinum electrodes? (ii) CuSO_(4) using copper electrodes?