Okay, the first thing you need to do is get the correct density. The density of copper is 8.94 g/mL and NOT 8.94 grams per Liter.
The mass of the wire is 59,020 grams. With the mass and density known, you can now calculate the volume of the copper that you have.
59,020g / 8.94g/mL = 6601.79 mL of copper.
Now we know that the wire has a diameter of 0.845 centimeters and a wire is basically a cylinder, so the volume is equal to pi*r*r*h where h would be the length of the wire.
We have the value of pi, we have the diameter, and we have the volume so calculating h should be easy.
6601.79 mL = pi*0.4225*0.4225*h.
h = 11772 centimeters.
there are about 2.54 centimeters in an inch, so your wire is about 386 feet long.