A galvanic cell operates at \(298\text{ K}\) according to the overall reaction represented below.

\[ \text{Sn(s)} + 2\,\text{Ag}^+\text{(aq)} \rightleftharpoons \text{Sn}^{2+}\text{(aq)} + 2\,\text{Ag(s)} \]

The standard reduction potentials for the relevant half-reactions are given in the table.

Half-Reaction	\(E^\circ\text{ (V)}\)
\(\text{Ag}^+\text{(aq)} + e^- \rightarrow \text{Ag(s)}\)	\(+0.80\)
\(\text{Sn}^{2+}\text{(aq)} + 2\,e^- \rightarrow \text{Sn(s)}\)	\(-0.14\)

Which of the following correctly identifies the sign of \(\Delta G^\circ\) and the magnitude of the equilibrium constant, \(K\), for the overall reaction at \(298\text{ K}\)?