No. A 2.5 hour layover is really a 1.5 hour layover considering international flights board 1 hour before the scheduled departure.

Liberty State Park would be the best view for the statue and that would be a 30-40 ride in Friday rush hour traffic. That's 1 hour and 20 minute round trip. Once you get back to the airport, you then have to go through security again, at Newark Airport, on a Friday when everyone want to get out of town for the weekend.

There's no chance you can make it to the statue and back in time.