The limiting reagent is copper (II) chloride.
Start by writing the balanced chemical equation for this double replacement reaction
This means that the reactant that has fewer moles present will act as a limiting reagent.
To determine how many moles of each you have, use the two compounds' molar mass
Looks like the copper (II) chloride will be the limiting reagent, which of course means that the silver nitrate will be in excess.
So, the formula of the limiting reagent is
The maximum amount of silver chloride that the reaction can produce depends on the number of moles of each reactant that actually react.
SInce the limiting reagent will determine how many moles of silver chloride will be produced, you will have
The mass of silver chloride that contains this many moles is
After the reaction is complete, you will be left with
The mass of silver nitrate that remains after the reaction will be