The equilibrium constant of the reaction : <br> $Cu(s) + 2Ag^+(aq) \to Cu^{2+}(aq) +2Ag(s);$ <br> $E^o = 0.46V$ at 298 K is :

Question

( A ) $4.0 \times 10^{10}$
( B ) $4.0 \times 10^{15}$
( C ) $2.0 \times 10^{10}$
( D ) $2.4 \times 10^{10}$