I'm learning PCB design and more than once I faced this issue. What are the standard practices when the trace width is higher than the pin size? Suppose you are designing a 3A charger with a Micro-USB as input. For example, for this connector the 5V pin can take up to 3A. However, the pin width is 0.45mm, which is significantly less than the recommended track width when dealing with 3A current.
How to solve this type of incompatibility?