Submitting a copy is not a mandatory requirement during the Amazon store opening process. However, to ensure a smooth application, it is recommended that you prepare copies of the following documents:

1. Business license: A business license is a basic document required for opening a store. When registering an Amazon store, you need to provide a copy of your business license.

2. ID card: Amazon requires sellers to provide a copy of their ID card in order to verify their identity.

3. Bank account opening license: If you choose to use a bank account opening license as a settlement method, you also need to provide a copy of it.

4. Tax registration certificate: Depending on the relevant regulations of your country/region, you may need to provide a copy of your tax registration certificate.

5. Other supporting documents: Depending on different sites and sales plans, you may need to provide copies of other relevant supporting documents, such as brand registration certificates, product quality certifications, etc.

Please note that specific requirements may vary by country and region. Before applying to open a store, please be sure to check Amazon's official store opening guide or consult professional customer service to ensure that all necessary documents are submitted. Although photocopies are not mandatory in most cases, in order to smoothly complete the store opening process, it is recommended that you prepare photocopies of relevant documents in case of emergency.