Not too much wrong with the car. At least not with the Oxygen sensors.
Sensor 2 (behind the cat) is supposed to be high - above 0.6 Volt.
If it showed the same pattern as sensor 1, the cat is not working (defective/empty).
The fuel trim is only used for sensor 1, not for sensor 2.
The Long Term Fuel Trim indicates that in general the mixture is a bit weak (8%).

See this description about Oxygen sensors and checking the cat:
http://www.picoauto.com/tutorials/cat-efficiency.html

What are the problems? And the symptoms?