When a $Cu$ rod is kept in an $AgNO_3$ solution,what is the redox reaction that occurs?
- A$Cu_{(s)} + Ag_{(aq)}^{+} \rightarrow Cu_{(aq)}^{2+} + Ag_{(s)}$
- B$Cu_{(s)} + 2 Ag_{(aq)}^{+} \rightarrow Cu_{(aq)}^{2+} + 2 Ag_{(s)}$
- C$Cu_{(s)} + Ag_{(aq)}^{2+} \rightarrow Cu_{(aq)}^{2+} + Ag_{(s)}$
- D$2 Cu_{(s)} + Ag_{(aq)}^{+} \rightarrow 2 Cu_{(aq)}^{2+} + Ag_{(s)}$
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