My iPhone was stolen do I tried tracking it with find my iPhone but it is offline I wanted to know if you guys will be able to track it for me with a serial number because I still have the box

Click on this link for general information about what to do "If your iPhone, iPad, or iPod touch is lost or stolen" --> https://support.apple.com/HT201472

- The Find My service is the only recovery feature Apple offers. It MUST be set up before the device is lost.

If Find My iPhone is offline or not working' click on the link to 'Get help when you don't see your device listed, or you see an unexpected device or an alert that says your device is offline.' --> https://support.apple.com/HT204233