If you put an iron nail into a beaker of copper chloride, you will begin to see a reddish precipitate forming on the nail. In this reaction, iron replaces copper in the solution and copper falls out of the solution as a metal.
The balanced equation is Fe+CuCl -> FeCl2+Cu
If you start out with one mole of your limiting reactant (Fe), how many grams of copper can you expect to produce through this reaction?