How can one sketch an electrolysis cell that electroplates nickel onto other metal surfaces, labeling the anode and cathode and indicating the reactions that occur at each?

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1. Identify the components of the electrolysis cell: anode, cathode, electrolyte solution, and power source.
2. Label the anode as the positive electrode where oxidation occurs, and the cathode as the negative electrode where reduction occurs.
3. Indicate that the anode is made of nickel, which will dissolve into the electrolyte solution as Ni^2+ ions.
4. Label the cathode as the metal surface to be plated with nickel, where Ni^2+ ions from the solution will gain electrons and deposit as solid nickel.
5. Write the half-reactions: at the anode, \( \text{Ni (s)} \rightarrow \text{Ni}^{2+} (aq) + 2e^- \); at the cathode, \( \text{Ni}^{2+} (aq) + 2e^- \rightarrow \text{Ni (s)} \).