Cu$^+$/aq is unstable in solution and undergoes simultaneous oxidation and reduction according to the reaction: 2Cu$^+$(aq) $\rightleftharpoons$ Cu$^{2+}$(aq) + Cu(s). Choose correct E$^\circ$ for above reaction if E$^\circ$$_{Cu^{2+}/Cu}$ = 0.34 V and E$^\circ$$_{Cu^{2+}/Cu^+}$ = 0.15 V.