Brooks
When you said 'Tablet', I
assumed it was
a reading device 
Calibre does NOT run on Android. CC integrates with your Calibre Library Host
You can use your Laptop as the Calibre (Library) server
Your USB WiFi dongle should be able to be configured to allow 'Peer' connections
CAUTION: enabling peer mode while in public locations. The security is weak.
?
How old is this Laptop?
No (built in) WiFi is something I thought disappeared 10 + years ago