A student investigates whether copper metal can provide the electrons needed to recover nickel metal from a solution. The proposed reaction is

\(\text{Ni}^{2+}\text{(aq)}+\text{Cu(s)}\rightarrow\text{Ni(s)}+\text{Cu}^{2+}\text{(aq)}\)

The relevant standard reduction potentials are shown below.

Reduction half-reaction	\(E^\circ\)
\(\text{Ni}^{2+}\text{(aq)}+2e^-\rightarrow\text{Ni(s)}\)	\(-0.25\text{ V}\)
\(\text{Cu}^{2+}\text{(aq)}+2e^-\rightarrow\text{Cu(s)}\)	\(+0.34\text{ V}\)

The experiment is conducted at \(25^\circ\text{C}\) with both aqueous ions initially at \(1.0\text{ M}\). Which choice correctly indicates whether the proposed reaction is thermodynamically favorable under standard conditions and whether an external voltage source is required to sustain the reaction as written?