Depict the galvanic cell in which the cell reaction is: $Cu + 2Ag^{+} \to 2Ag + Cu^{2+}$

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(A) In the symbolic representation of a galvanic cell,the oxidation half-reaction is written on the left side and the reduction half-reaction on the right side.
In the given reaction,the oxidation of $Cu$ to $Cu^{2+}$ and the reduction of $Ag^{+}$ to $Ag$ occurs.
The two vertical lines represent the salt bridge placed between these two half-cells.
The complete representation of the cell is: $Cu | Cu^{2+} || Ag^{+} | Ag$

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

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