50.0 grams of copper, with a specific heat capacity of 0.385 J/goC, and the initial temperature of 10.0 oC is dropped into 400.0 grams of vegetable oil, with a specific heat capacity of 1.67 J/goC at 175 oC. Calculate the equilibrium temperature of the oil and copper combination, assuming no heat is absorbed from or by the container, or the surroundings, (Show all work clearly, including formulas, units, etc.).