I'm assuming track 2 is currently an empty track, yes? Doesn't have to be though.
1. Drag and drop from i/o button track 1 to i/o button track 2 to create send. Set routing parameters (type, vol, etc) to suit.
2. Arm second track for recording
3. Set track 2 to Record Output (mono, stereo, whatever you want)
4. Press Ctrl+R
5. Go get yerself a cup of tea while it does it.
6. Stop transport when finished.
7. That's it.