Your best bet is to:
1. Consult your owner's manual: This is the most reliable source. It should have a diagram of the fuse and relay box.
2. Look for a diagram inside the fuse/relay box lid: Many fuse boxes have a diagram printed on the inside of the cover.
3. Use a wiring diagram: You can find these online (a subscription to a service like AllDataDIY might be needed for a complete and accurate diagram). The diagram will show the relay's position and its circuit.
4. Refer to a reliable online forum: Searching online forums specific to 1997 Camaro RS owners might yield results from someone who's already identified the relay.
Important Note: While the fuel pump relay is likely in the underhood fuse/relay center, always double-check your owner's manual or a wiring diagram to be absolutely sure. Improperly replacing or working on relays can lead to damage.